Link Centre Dictionary

melatonin

me·la·to·nin

UK/ˌmɛləˈtəʊnɪn/ US/ˌmɛləˈtoʊnɪn/ uncommon

noun

1.

hormone secreted by the pineal gland

Origin

From mela- + tone + -in, ultimately from Ancient Greek μέλας (mélas, “black, dark”).

Related words

Broader terms

WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.